Boost was implemented specifically with mobile gamers in mind, users often find it akin to gems in Clash Royale. While in its current form it serves for only tournaments, it will also be used for purchasing GGID items, as well as other transactions where we will not be able to initially use GZR. If you take a look at our item distribution here: https://imgur.com/B71Q8v9 you'll notice that there are common, rare, legendary, insane and unfathomable items. Common items, as well as rare items, will also be purchasable with boost, whereas GZR items represent significantly more impactful, collectible and sought after items. We will transition over from the boost system to a blockchain based system which fully utilizes the potential of GZR down the line. This is the best move from a legal standpoint, but we also believe that it will help widespread adoption of GZR items as more players begin surfacing with the incredible items they unlock from GZR and many players will want to emulate this.